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(C) AG DBIS
  

Use Case 3:

Node Operation getPrevSibling(contextNode)
returns null value

The getPrevSibling operation returns null because the context node CO is the first child of parent node PA and no previous sibling node PS exists.
  • This operation can be executed on an element context node
  • This operation can be executed on an text context node

Scenario 3-1 for taDOM2 Lock Requests:
NodeLockPSENSEFCELCE
CONRER---
CNNR----
PA---ER-
Scenario 3-2 for taDOM2+ Lock Requests:
NodeLockPSENSEFCELCE
CONRER---
CNNR----
PA---ER-
Scenario 3-3 for taDOM3 Lock Requests:
NodeLockPSENSEFCELCE
CONRER---
PA---ER-
Scenario 3-4 for taDOM3+ Lock Requests:
NodeLockPSENSEFCELCE
CONRER---
PA---ER-

Operation behavior described with base operations:

  • readCO
  • useCOPSE
  • usePAFCE
Read Set = CO PAFCE COPSE , Write Set =

This operation can be executed on the following nodes:

  • AC
  • PA
  • PS
  • CO
  • NS
  • FC
  • CH
  • LC
  • DC
  • CA
  • AX

If this operation is executed the following nodes are existing:

  • AC
  • PA
  • CO
  • NS
  • FC
  • CH
  • LC
  • DC
  • CA
  • AX